Mardel Live pH In-Tank Meter Aquarium Water Testing, Three Pack

It isn't as accurate as an actual PH test kit with the two separate additives and beakers. It seemed accurate for about a week and then showed the water to have a dangerously high PH. When I tested with the traditional methodthe PH was where it should have been.

I give it two stars just because it was accurate (if only for a week).

I found that this pH checker was not as accurate as the one that I bought from Pet Smart. The one from Pet Smart was made by Seachem. It was an Alert combo which contained two devices. One was for pH and the other was for ammonia readings. The dual pack was around 12 or 13 dollars. The pH checker lasts 3-6 months while the ammonia lasts for 1 year. While the Mardel is cheaper long term because it comes with 3 meters that each last 3 months I will choose the Seachem for accuracy.

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Its okay for getting a rough idea of where your pH balance is, but not 100% accurate. But at least it gives you a good indicator as to whether you need to really test it and check your water pH.

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